Closes #1088

gtkexcepthook only for those that run svn versions; release user should not be bugged with TBs as they should be minor to overall functionality and he should not care. if he is advanced he knows how to find out what is wrong (how to get to see a traceback etc); also moving get_avatar_pixbuf_from_cache to gtkgui_helpers (all in one commit because of import issues)

[lorien420] popup notifications now use notification-daemon if there so they look nicer thanks to Andrew Sayman. I go play some Crack Attack! in return

using less annoying sounds taken from gaim2 cvs for contact connected and disconnected. thanks Mark Rosenstand

when we know the real_jid and we open a chat window, we talk with the real jid and not the fake jid (jix avatar pb: we now ask the avatar of the real jid and not fake jid which is saved in the wrong file)

set always_english_wiktionary to True; chances are if you do not know a word you are french, greek, german whatever and u chat in english. leave out the fact that english wiktionary entry has translations so you get definition in english and tranlsation

wizard texts on failure success are now pangoed and look nicer. also no more hardcoding \n and using word wrap; making translators life easier by ommiting some \n etc

add gimp2 script to assist to splitting from spirtes to layers so we can save gif, until we go gtk28+ and we burn gifs

[norman] add crystal. I removed file-spinning.png and headline.png that had animations but we dont use them until now. we can at any time find it and make it gif via crystal.jisp. we could use an animation for FT